Package with tear opening strip device

Details Package with tear opening strip device Package with tear opening strip device

1988-06-10

1989-07-18

Marcus, Stephen

Envelopes, wrappers, and paperboard boxes

Paperboard box

Including tearing or breaking means for opening a nonunitary...

206605, 206616, 206617, 22912535, B65D 5506

Patent

active

048486493

ABSTRACT:
A package for foods is disclosed and comprises a container having a peripheral flange at its mouth. The container is made of or lined with a plastics material so as to provide a plastics surface at the flange. The container is covered by a lid which is heat-sealed to the flange. In order to be able to open the package easily, especially when it is hot, a tear-strip of material extends across at least the flange and is secured to the lid by a heat seal. The tear-strip presents a tab for engagement by the fingers of a user, and, in order to ensure that the lid can be torn effectively by the tear-strip, the bond between the tear-strip and the lid is chosen to be at least as strong as the bond between the lid and the flange.

REFERENCES:
patent: 3115245 (1963-12-01), Schechter
patent: 3194479 (1965-07-01), Rumberger
patent: 3873735 (1975-03-01), Chalin et al.
patent: 4091930 (1978-05-01), Buchner et al.
patent: 4337284 (1982-06-01), Cooper et al.
patent: 4351473 (1982-09-01), Manizza
patent: 4438850 (1984-03-01), Kahn

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